Air-pump.



C. M. SCOTT.

AIR PUMP.

APPLICATION FILED JULY19,1911.

Patented Apr. 15, 1913.

2 SHEETS-SHEET 1.

if@ y muw Ano/mm C.`M. SCOTT.

AIR PUMP.

APrLIoA'rIoN HLBD JULY19,1911.

Patented Apr. 15,' 1913.

2 SHEETS-SHEET 2.

WITNESSES other of the plates, as shown more particularly in Fig. 5, is inserted over the hub E;-

. further, the hub projects through the centrally-d-isposed aperture 28, and t-he lattermentioned. plate supports the bracket 29 uponnvhich' the pump is mounted by means of -a rivet 30 passing through the bracket and through apertures 3l on said plate.

Upon the end of the shaft 24 opposite the f be desired, however, lto inflate the tire, it will be necessary merely to cause the gear Wheel 32 to revolve about a stationary gear, which will turn the gear Wheel/32 on its own axle, thereby actuating the pump. The means for doing this must necessarily be varied according to whether the deviceis mounted on the front or on the rear wheel, and, this connection willr be described first with reference to the rear wheel, as shown more clearly in Fig. 1.

Slidably mounted up'on a boss 33 extending toward the axle from/the drum brake G is mounted a gear clutch 34, the teeth of which gear clutch are adapted to mesh with the teeth of the gear Wheel 32. This clutch is actuated by a yoke lever'35 fulcrumed at 36 to a drum brake G or to any other suitable part of the vehicle, which lever is actuated by a rod 37 or other suitable connection leading to a point adjacent the operators seat- It will be seen that by drawing t-he rod in the direction indicated by the arrow, the clutch 34 will engage the gear wheel 32, causing thegear wheel 32 to rotate its shaft 24 and crank wheel 2l, thereby reciprocating the piston stems 15 and supplying compressed air tothe tire B. When the tire has been suliciently inflated, the clutch 34 is withdrawn from the gear `wheel 32 and the pump runs idle about the hub of the wheel.

In order to ail'ord a connection betwee the gear wheel-32 and the body of the ve- `hicle, in the case of a lirontl wheel, and at the same time, not to interfere with the steering mechanism, there is mounted on the hub E, as shown more particularly in Fig. 3, a compound gear wheel 38, one set of teeth 39 of whichis permanently in mesh with the gear wheel 32, which gear wheel 38 has a set of sideiacing teeth 40. In order to hold the gear `wheel 38 relative to the vehicle, a segmental clutch 41 is slidably mounted' upon the steering head H between guide plates 42 and 43, oneof which guide plates has a block 46 at the top face thereof, which block fits within the rectangularly disposed `opening47 in the segmental clutch 41. The

guideplltes andthe segmental clutch are held in position by means of a pivot pin 44 passing throughalined apertures 48 in the plates 42 and 43, which pinfforms 4a bearing between the axles F .and J.. The end of the segmental clutch 41 facing the teeth 40, is formed into a segmental lend 45, the-teeth of which are adapted to engage the teeth 40 on the gear 38. This clutch 41 is actuated by a rod 37 extending toward the operator. It will be seen by this construction, that the gear wheel is -movable into position relative to the body of the vehicle, but due to the Y segmental end 45 of the clutch 41, the gear wheel 38 mounted upon the axle J may change relative to the vehicle, and through which construction the steering device will operate irrespective of whether the connection is made to the pump or whether the pump be running idle.

While a preferred embodiment of the invention' has beem described, it is to be understood that many changes could be made in the above construction and many' apparently Widely dili'erent embodiments of this invention could be made without departing from the scope thereof. It -is intended that all matters contained herein in the above description or shown in' the accompanying drawings, shall be interpreted as illustrative and not in a limiting sense. It is also to be understood that the language used in the following cl lims is intended to cover the full scopegof the invention and is not to be given any narrower' construction than the priorart demands and that materials, sizes and relativities o parts are nonessential, except as called for in the claims.

Having thus described my invention, I claim as new and desire to secure by Letters Patent:

1. In combination, a wheel, a pump comprising a pair; of Yparallelly-disposed cylinl A adapted to engage said gear Wheel, 'to hold the same stationary"v with-reference to the clutch, whereby theg rotation of the Wheel will'actuate said puI 1f1 p.` y,

2. In combination witlia wheel, a pump mounted on said wheel, said pump comprising'a pair of parallelly disposed cylinders mounted on'opposijte sides of the hub, a rain bar connecting the! piston stems of said cylinders, said bari-:hating `a transverse slot extending therethrbug'h, a crank pin slidably mountedy inffls'ajid slot, guide bars slidably engaged ly'sad cam bar to guide one for each piston rod pivoted to the wheel' at the end nearest the dpump, a lilik` connectin the opposite en `oi? each rod with the w eel, a cam bar having its opposite ends in sliding `enga,f .g'ement, with the guide rods and pivoted to each of the piston rods, 15 and a connection between said Wheel and cam. bar, to reciprocate the latter on said` guide rods to actuate said umps.'

In testimony whereof I ave signed my name to this specification in the presence of 2o two subscribing witnesses.

` -CHARLESIMACK SCOTT. Witnesses: y LEE Ur'roN, MELVIN MERICK CARRIER. 

